diff --git a/IPython/core/tests/test_compilerop.py b/IPython/core/tests/test_compilerop.py
index 26ed154..1e214d2 100644
--- a/IPython/core/tests/test_compilerop.py
+++ b/IPython/core/tests/test_compilerop.py
@@ -1,3 +1,4 @@
+# coding: utf-8
 """Tests for the compilerop module.
 """
 #-----------------------------------------------------------------------------
diff --git a/IPython/core/tests/test_history.py b/IPython/core/tests/test_history.py
index 84a6a3a..fc5e4b3 100644
--- a/IPython/core/tests/test_history.py
+++ b/IPython/core/tests/test_history.py
@@ -1,3 +1,4 @@
+# coding: utf-8
 """Tests for the IPython tab-completion machinery.
 """
 #-----------------------------------------------------------------------------